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54 Chapter 3: Replacing Pre-installed Components
3.7.2 Fan Board Connector Pin Definition
J3 and PWM Pin Header
FAN1~FAN6 Fan Connector Pin Out
J1, J2 Big 4-pin Power Connector Pin Out
Each system fan connects to the fan board as listed below:
1 FAN1 PWM 2 GND
3 FAN2 PWM 4 GND
5 FAN3 PWM 6 GND
7 FAN4 PWM 8 GND
9 FAN5 PWM 10 GND
11 FAN5 PWM 12 GND
13 FAN PWM INPUT 14 KEY PIN
15 MUTE+ 16 GND
1GND
2 VDD +12V
3CLOCK
4PWM
1 VDD +12V
2GND
3GND
4 VDD +5V
System Fan Connects to Fan Board
System Fan1 Æ Fan1 connector
System Fan2 Æ Fan3 connector
System Fan3 Æ Fan5 connector